Type S Fanatic

I see everyone has the Test Pipe done on their cars but it is not on ATLP's website, is this the Race Pipe?

Overall, I'm thinking about doing the Pre-cat Deletes from RV-6 and the J-pipe and Race Pipe from ATLP. Any other suggestions? I have the Type S so Im thinking about keeping the rest of the Exhaust stock? Recommend changing?

TL|GTX

If u want most power gains, get a J-Pipe, and a Pre-Cat delete.

Rick_TL-S

While they are not the exact samething, they both replace the same part. The Test Pipe, I believe is actually a little resonated, while the Race Pipe is a just a straight pipe. Either one of these (or a Hi-Flow Cat) will replace your 3rd cat.

Type S Fanatic

Thanks that what I thought it was, was just a hi flow cat. I see you did the J-pipe and the Race Pipe. Did you notice a pretty good gain? change of sound? are you still using the stock mufflers? Do you think the Pre-cat deletes would be well worth it?

stillhere153

iTrader: (1)

richie v6 and atlp both offer RACEPIPES
richie v6 offers a testpipe (which is a racepipe with a resonated wall)

prices vary...
richie's is like $50 give or take $10
atlp is $125 I believe

Rick_TL-S

Car pulls slightly harder, but I have not done a dyno since the intake. The car is running stock mufflers until I get the ATLP Quad in. Afterwards, I'll have a dyno done shortly to see the gains.

I would also say Pre-Cat Deletes are definitely worth it. Everyone here that has gotten them as noticed the difference. Their only true downside is probably inspections.

BukvaMan

and low-end torque

dflo

Is there a big difference in hp gains with the 3 replacement options for the 3rd cat? Or, is it primarily sound and emissions compliance (with high-flow cat)?

greco9885

iTrader: (1)

rv6 precat deletes, atlp j pipe, rv6 race pipe FTW!

jmkiang

iTrader: (5)

I know someone who went to get their emissions tested WITH RV6 deletes and passed! Haha

As long as there are no CELs, you should pass your emissions but this is state-dependent.

greco9885

iTrader: (1)

^yep, aslong as your state does do a smog check, your fine

loczek28

what would be the best setup with the ATLP base exhaust

jmkiang

iTrader: (5)

^

1. Search! Sooo many threads talking about the "best" set up.

2. To answer your question, its really all preference. Aftermarket j-pipe is a must (RV6, ATLP, XLR8). 3rd cat should be replaced with a resonated test pipe (RV6), a non-resonated race pipe (RV6, ATLP) or a high-flow cat (RV6, ATLP). As for your primary cats, you can install RV6 precat deletes, E-shift procats or OEM type-S precats.

loczek28

alright cool thanks a lot im gonna be at the Chicago meet to so i might get some more info there

jmkiang

iTrader: (5)

^ See you Saturday! You'll be able to "see" a lot of different setups.

TL|GTX

Does the resonated version give u more low-end torque?

BLKURA

I'll be picking up the J-pipe V2+ Race/test pipe. I'm not sure which pipe I'll choose.

Anyone have sound clips of this set up on a stock exhuast with a CAI? What about HP #'s on the Race/Test pipe?

jmkiang

iTrader: (5)

Performance-wise, they are essentially the same.

In my experience, the race pipe delivers a throatier note whereas the test pipe delivers a deeper note... maybe? Haha

erick3

i believe the test pipes are resonated?

edit: yup, they are says stillhere153 up above...my fault

beast5319

Can you see the precat deletes if you get them? IE will they pass a visual inspection?

blkaspec

maybe, but probably not. i dont think the stock shields attach to the deletes, so if they know what they should look like then they wont pass. but dont quote me on that...

rsxs9400

i just wanted to quote you on that...

blkaspec

hehe

jmkiang

iTrader: (5)

Stock heatshields do not attach to the precat deletes and will not pass a visual inspection if your guy is competent

Rick_TL-S

The guy might have to look a little hard though. The Pre-Cats aren't exactly in plain sight, and 1's pretty much hidden.

vt4lifecuf

if you like it to sound nice with that route remember to delete the third muffler...i found a clip on youtube for it. It sound really nice

Acura Jeff

What do we attribute the price difference to? Construction, materials, profit?

Acura Jeff

Just for clarification, are you suggesting one looses low end torque when Pre-Cat Deletes are used?

TL|GTX

Mainly anything in the exhaust that is higher or faster flowing, will cause some sort of loss in low-end torque, but till what 2-3k rpm. Right after that you will be going faster then before, but other then that your gaining more torque over-all.

jmkiang

iTrader: (5)

Cost of production. RV6 products are made overseas while ATLP products are made in the US (I think)... damn US hourly rates!

Material-wise, RV6 uses a superior type of stainless steel (304 vs 439).

Construction-wise, both use solid flanges and I think they are both TIG welded.

jmkiang

iTrader: (5)

Decreased back pressure = shifted power band = low end tq affected = pulls HARD in high RPMs

Acura Jeff

I appreciate the feedback. It would be neat to create a simple spreadsheet detailing the differences (RV6, ATLP, XLR8) for guys to reference. Hint hint vendors. We could use your help.

1fsthatch

global warming is real leave the cats on!! lol

Type S Fanatic

I live in montana and we just got 8" of snow. I think Al Gore is Full of BS! THere is no such thing as global warming! HAHAHA. Plus Scientists havnt been able to recreate it in the lab to prove that CO2 is the culprit.

Acura Jeff

I noticed in your title block you plan to remove just about any restriction in your exhaust system. Please be sure to report back your honest findings after the fact. I would be very interested in how your low end torque is afftected.

I tried your approach on my Accord. I was extremely disappointed and pulled off alll the aftermarket pipes and put the stock exhaust back on because the engine bogged so much on the low end it negated the gains on the high end of the RPM spectrum. Besides I am not going to drive mostly above 5000 RPMs. Hence, that mod was not for me or my vehicle. Keep in mind, that was a 4cy Accord which obviously needs the back pressure for low end. Lesson learned. Lets see the effects on a 6cy TL.

Thanks.

stillhere153

iTrader: (1)

Yeah the k24 is different than the j32/j35... My friends base 07 halls ass all over low end mid range top end you name it

His setup is rv6 precat deletes/jpipe/resonated test pipe/greddy evo2

sprtstr012

so if i got the race pipe from acuratlparts.com, that would take out my precats and put that in its place? Does that pass emissions and is it legal and what not? No problems will result from doing this?

Also do i need the o2 sensors and anyhing like that or do i just get the race pipe and take out precats and put race pipe in?

Help

sprtstr012

or is precat deletes and race pipe two different mods?

Rick_TL-S

They are 2 different mods.

Pre-Cats will replaces your first 2 "cats" that come straight down from the heads if I recall. These lead down to your J-Pipe. Afterwards, comes your 3rd cat., which is what the race pipe replaces.